Barely 10 weeks ago, we had never heard of Jedi Jim. Vincent had not yet swashbuckled into our world. We couldn't even begin to imagine the impact of Melody's footprints on the moon, nor the myriad applications of Susan's beauty experience. Zoe, Tom and Natasha were but a dream, albeit a slightly disturbing one.

And yet here we are – four candidates remain to face the final battle, with only the interview panel standing between them and Lord Sugar's £250,000 investment. On Sunday one of them will be crowned winner, but the winning isn't why we watch The Apprentice – it's very much about the glorious comedy moments along the way. Here are a few of my favourites this series.

Best "are you really that stupid?" moment

Oh, so many moments of mindless fatuity to choose from. Vincent calling a fishmonger to ask where to buy meat in London, Gavin trying to buy a top hat in a dry cleaner's, Susan asking if the French love their children, Helen and Melody trying to flog £50 watches in a pound shop. But I think the winner has to be way back in episode one, when two ambitious, young men in the prime of their lives stood in a London fruit market and enjoyed the following exchange:

Glenn: "Is that an orange?"

Vincent: "Don't know."

Best pitch

By best I obviously mean worst, because watching someone do a good job is no fun at all. Jim's excruciating attempt to pitch Hip Replacement magazine was only outdone a couple of weeks later when he promised Asda a £30m ad campaign if they ordered a few tubs of biscuits. Leon being bulldozed by Natasha while pitching lads' mag Covered was hilarious. But for sheer weirdness it has to be Edna presenting the girls' phone app to a roomful of techy kids while wearing long black leather gloves. So wrong.

Best boardroom moment

Tom confessing that he and Natasha decided who would pitch to the French by playing paper, scissors, stone was outstanding, but my favourite was Lord Sugar's response to Jim's assurance in week seven that they weren't "trying to shoot Bambi". Lord Sugar invariably has an array of withering responses to hand, but "it was actually Bambi's mother that got shot" is possibly one of my favourite ever.

Best idea that never made it

So many brilliant ideas that never made the cut – Lucky Fish cat food, Coffin Dodger magazine, Popsquit biscuits, Tom's "tell me the what the weather was like on any day in history" app, Byron pies…all opportunities missed. My favourite was Tom's emergency biscuits from week nine, made all the better for being called "EmerCrunchy". I want some, NOW.

So those are my best bits of series seven so far, although I'm sure Sunday's final will add plenty of new ones to the list. Let us know which have been your favourite moments and, of course, who you're predicting to win. See you Sunday, 9pm for the final - live!